package java8_13;

/**
 * @author oldliu
 * @since 1.0
 */
public class TwoDimensionArray {
    public static void main(String[] args) {
        int [][]ar=new int[4][6];//4行，一行6个
        ar[0][0]=9;
        ar[3][5]=87;
        System.out.println(ar.length);
        System.out.println(ar[0].length);
        int [][]a3={{1,2,3,4,5,6,7},{8,9},{10}};
        System.out.println("a3:"+a3.length);
        System.out.println("a3第三行长度："+a3[1].length);//?
    }
}
